Tropical Storm 03E


Passive Microwave (PMW) Intensity Information
Advanced Dvorak Technique
Version 9.1
 

       --Overpass--              --ARCHER--   Ring  Ring            Eye              BT   -Forecast-  
       Date    Time      Sat     Lat    Lon   Diam   Pct  TbDiff   Score  Meaning   Vmax  Lat    Lon                 
     20230711 201847     AMSR2   13.3 -107.1   N/A   N/A     N/A     N/A      N/A   30.0  12.5 -108.0 Analysis Plot     
     20230711 232311  SSMISF18   12.6 -108.5    68   49%    7.87   -7.87      N/A   30.0  12.6 -108.6 Analysis Plot     
     20230711 232307  SSMISF18   12.6 -108.5    68   40%    8.74   -8.74      N/A   30.0  12.6 -108.9 Analysis Plot     
     20230712 013516  SSMISF17   12.8 -108.8   101   11%    1.02   -1.02      N/A   30.0  12.7 -109.2 Analysis Plot     
     20230712 081750       GMI   12.8 -110.6   112   19%    0.49   -0.49      N/A   35.0  12.8 -110.8 Analysis Plot     
     20230712 120050  SSMISF18   12.6 -111.4   N/A   N/A     N/A     N/A      N/A   35.0  12.4 -111.6 Analysis Plot     
     20230712 141209  SSMISF17   12.6 -112.1   235   22%    2.17   -2.17      N/A   45.0  12.7 -112.3 Analysis Plot     
     20230712 194439       GMI   12.6 -113.5   N/A   N/A     N/A     N/A      N/A   55.0  12.8 -113.4 Analysis Plot     
     20230712 210129     AMSR2   12.5 -113.7   123   17%    2.68    2.68      N/A   55.0  12.8 -114.0 Analysis Plot     
     20230712 231011  SSMISF18   12.5 -114.8   N/A   N/A     N/A     N/A      N/A   55.0  12.9 -114.4 Analysis Plot     
     20230712 231019  SSMISF18   12.6 -114.8   168   39%    0.70    0.70      N/A   55.0  12.9 -114.7 Analysis Plot     
     20230713 012322  SSMISF17   12.3 -114.7   N/A   N/A     N/A     N/A      N/A   60.0  12.9 -114.8 Analysis Plot     
     20230713 091617     AMSR2   12.5 -115.7    90   43%   17.91   17.91      N/A   60.0  12.4 -116.4 Analysis Plot     
     20230713 114649  SSMISF18   12.4 -116.7    57    4%    3.37    3.37      N/A   65.0  12.5 -116.8 Analysis Plot     
     20230713 134032  SSMISF16   12.6 -116.8    46   29%    9.96    9.96      N/A   65.0  12.7 -117.1 Analysis Plot     
     20230713 135909  SSMISF17   12.7 -117.2    46   19%    9.16    9.16      N/A   65.0  12.7 -117.2 Analysis Plot     
     20230713 214516     AMSR2   13.0 -119.2    46   81%   18.40   18.40      N/A   70.0  12.9 -119.2 Analysis Plot     
     20230714 005124  SSMISF16   13.1 -120.1    34  100%   40.52   55.52  >65 kts   80.0  12.9 -119.6 Analysis Plot     
     20230714 025113  SSMISF17   13.4 -120.5   N/A   N/A     N/A     N/A      N/A   80.0  13.4 -120.9 Analysis Plot     
     20230714 095907     AMSR2   13.3 -121.9    23  100%   35.27   50.27  >65 kts   90.0  13.3 -122.6 Analysis Plot     
     20230714 132740  SSMISF16   13.4 -122.9    12  100%   29.71   44.71  >65 kts  100.0  13.6 -123.2 Analysis Plot     
     20230714 193246       GMI   13.8 -124.3   N/A   N/A     N/A     N/A      N/A  110.0  13.9 -124.3 Analysis Plot     
     20230715 002534  SSMISF18   13.9 -125.2   112   14%    3.42    3.42      N/A  110.0  13.9 -125.4 Analysis Plot     
     20230715 023626  SSMISF17   14.2 -125.8    34   N/A    7.38    7.38      N/A  105.0  14.2 -126.0 Analysis Plot     
     20230715 084701       GMI   14.4 -127.5    57   69%   13.99   13.99      N/A   90.0  14.5 -127.5 Analysis Plot     
     20230715 104253     AMSR2   14.6 -128.1   N/A   N/A     N/A     N/A      N/A   90.0  14.7 -128.3 Analysis Plot     
     20230715 130136  SSMISF18   14.3 -128.5    34   40%   19.00   19.00      N/A   90.0  14.8 -128.8 Analysis Plot     
     20230715 151213  SSMISF17   14.4 -128.9    34   N/A    4.96    4.96      N/A   90.0  14.8 -129.4 Analysis Plot     
     20230715 201354       GMI   15.2 -130.4   N/A   N/A     N/A     N/A      N/A   85.0  15.1 -130.4 Analysis Plot     
     20230716 144132  SSMISF16   15.6 -134.9    90   N/A    3.35    3.35      N/A   65.0  16.1 -135.1 Analysis Plot     
     20230716 221700     AMSR2   16.2 -137.0   N/A   N/A     N/A     N/A      N/A   55.0  16.2 -136.8 Analysis Plot     
     20230717 035142  SSMISF17   16.4 -138.2   190   N/A    1.75    1.75      N/A   55.0  16.4 -138.2 Analysis Plot     
     20230717 162623  SSMISF17   17.0 -142.2   179   N/A    2.59   -2.59      N/A   45.0  16.9 -142.3 Analysis Plot     
     20230717 195953       GMI   17.0 -143.2   N/A   N/A     N/A     N/A      N/A   45.0  17.0 -142.9 Analysis Plot     
     20230717 230015     AMSR2   17.5 -144.1   N/A   N/A     N/A     N/A      N/A   45.0  17.5 -144.2 Analysis Plot     
     20230718 012836  SSMISF18   17.3 -145.0   168    3%    1.44   -1.44      N/A   40.0  17.4 -145.4 Analysis Plot     
     20230718 033826  SSMISF17   17.2 -145.6   168   N/A    1.01   -1.01      N/A   40.0  17.4 -145.7 Analysis Plot     
     20230718 091557       GMI   17.4 -147.7   N/A   N/A     N/A     N/A      N/A   40.0  17.4 -147.7 Analysis Plot     
     20230718 111316     AMSR2   17.5 -148.7   135   10%    0.78   -0.78      N/A   40.0  17.5 -148.8 Analysis Plot     
     20230718 140251  SSMISF18   17.3 -149.7   179   11%    1.77   -1.77      N/A   40.0  17.5 -149.7 Analysis Plot     
     20230718 161257  SSMISF17   17.1 -150.0   201   11%    1.09   -1.09      N/A   40.0  17.6 -150.3 Analysis Plot     
     20230718 204114       GMI   17.7 -151.6   N/A   N/A     N/A     N/A      N/A   45.0  17.8 -151.9 Analysis Plot     
     20230718 234340     AMSR2   18.0 -152.7   N/A   N/A     N/A     N/A      N/A   50.0  18.0 -153.4 Analysis Plot     
     20230719 030937  SSMISF16   17.8 -153.5   246   N/A    3.91   -3.91      N/A   50.0  17.8 -153.5 Analysis Plot     
     20230719 115546     AMSR2   18.2 -156.0   N/A   N/A     N/A     N/A      N/A   40.0  17.7 -156.8 Analysis Plot     
     20230719 154402  SSMISF16   17.9 -157.4   157   N/A    3.13   -3.13      N/A   40.0  17.9 -157.4 Analysis Plot     
 
 
Legend

  - Overpass Date/Time are determined from satellite overpass of targeted TC (position determined from Best Track Lat/Lon position). Date is YYYYMMDD and time in HHMMSS (UTC).

  - Forecast (Best Track) and ARCHER positions (deg) of the TC center at overpass day/time. Positive/Negative: Latitude = North/South Hemisphere; Longitude = Eastern/Western Hemisphere.

  - BT Vmax is the concurrent ATCF Best Track (BT) wind speed intensity estimate (Vmax) value from either NOAA/National Hurricane Center (NHC) (North Atlantic and Northeast Pacific), NOAA/Central Pacific Hurricane Center (CPHC) (North-central Pacific) or Joint Typhoon Warning Center (JTWC) (Northwest Pacific, Indian Ocean, or Southwest Pacific).

  - Sat is the satellite descriptor providing the overpass. Currently the satellites used are the DMSP/SSMIS-16/17/18, GPM/GMI, and GCOM/AMSR2.

  - Ring Diam (km) indicates the estimated surface eyewall diameter if one is analyzed in the PMW imagery. The value listed is the average PMW-estimated inner eyewall edge diameter minus 10 km for eyewall slope. N/A indicates no appreciable eyewall is analyzed.

  - Ring Pct is the percentage of the analyzed "ring" (eyewall inner boundary) that is 1) colder than the eye Tb (the "hot spot" -- warmest eye pixel) by at least 20K, or 2) that is colder than 232K and colder than the eye Tb by 10K, whichever is greater. Values are red if Ring % ≤65,yellow/brown if Ring % ≤85 and green if Ring % >85. N/A indicates no appreciable eyewall is analyzed. A value over 85% is used in the intensity score by adding 15 points to it.

  - TbDiff is the difference between the warmest eye pixel and the warmest pixel on the eyewall. This value is used in the Intensity Score. N/A indicates no appreciable eyewall is analyzed.

  - Eye Score values are based on the strength and organization of the convective/eyewall signatures in the PMW imagery, and based on the ARCHER center location. They normally range from 0 to 100 with empirically-determined thresholds related to intensity (Vmax) in the "Meaning" column (≥20 suggests ≥65kts; ≥60 suggests ≥85kts). Scores are listed as negative, and not used by the ADT, when the NHC, CPHC, or JTWC Best Track Vmax is <55 kts in order to filter out occasional "false eye" cases. A value of -920 is used when the warmest eye pixel is <200K to prevent false positives; -930 means edge of overpass and <85% of eyewall is captured and therefore can't fully be analyzed.